The purpose of this study was to determine the growth of three soybean varieties against gibberellin concentration. The study was conducted in Sampecita Village, Kutalimbaru District, Deli Serdang Regency, North Sumatra, which was carried out from November 2024 to January 2025. This study used a factorial Randomized Block Design (RAK) experimental design consisting of 2 treatments, namely varieties (Dering 1, Dega 1 and Devon 1) and gibberellin immersion, namely: 0 ppm, 20 ppm, 40 ppm and 60 ppm which were repeated 3 times. The research data were analyzed and continued with the Duncan's mean difference test (DMRT). The results showed that the growth and production of soybean plants against varieties showed a significant effect on the number of productive branches and no significant effect on the parameters of plant height, number of leaves and root length. In the gibberellin treatment and the interaction of the two showed no significant effect on all parameters.

Keywords: concentration, gibberellin, growth, soybean, variety

Bambang, S. 2022. Ketahanan Pangan Indonesia, Simulasi Kebijakan Ekonomi Kedelai Dalam Prospek Swasembada.CV Literasi Nusantara Abadi Malang.

Bakhtiar, T. Hidayat, Yadi, J. dan S. Safriati. 2014. Keragaan pertumbuhan dan komponen hasil beberapa varietas unggul kedelai di Aceh Besar. J. Floratek 9: 46-52.

Birnadi, S. 2017. Respons Mentimun Jepang (Cucumis sativus L.) Var. Roberto terhadap perendaman benih dengan Giberelin (GA3) dan bahan organik hasil fermentasi (BOHASI). J. Pertanian 10(2): 77-90.

Badan Pusat Statistika. (2021). Luas Panen Produksi dan Rata – Rata Produksi Kacang Kedelai Menurut Kabupaten/Kota.

Permasi. L.D. 2017. Pengaruh Konsentrasi ZPT GA3 Dan Lamanya Perendaman Benih Terhadap Pertumbuhan Dan Hasil Tanaman Kacang Hijau (Phaseolus vulgari) Varietas Sriti. Agroswagati, 1(3): .

Rahmasari D.A, 2016 Pengaruh Jarak Tanam Dan Waktu Tanam Kedelai Terhadap Pertumbuhan Dan Hasil Tanaman Kedelai (Glycine max L) Jurnal Produksi Tanaman 4 (5) :

Rahmat F, Zuyasna, Mayani N. 2018. Uji Daya Hasil Kedelai (Glycine max (L.) Merril) Varietas Kipas Merah Mutan Generasi Ke-3 (M3) di Kebun Percobaan Fakultas Pertanian. Jurnal Ilmiah Mahasiswa Pertanian Unsyiah. 3(2): 31–42.

Sa’diyah N, Zulkarnain J, Barmawi M. 2016. Uji Daya Hasil Beberapa Galur Kedelai (Glycine max [L.] Merrill). Agrotek Tropika. 4(2): 117–123.

Taiz, L dan E. Zeiger. 1995. Plant Physiology. The Benjamin/Cummings Publishing Company, Inc. Redwood City, California.

Upreti, K.K. dan M. Sharma, M. 2016. Role of Plant Growth Regulators in Abiotic Stress Tolarance. In: Rao.N.s. et al. (eds) Abiotic Stress Physiology of Horticultural Crops. India. Pp. 19 – 46. doi:10.1007/978.8 322-2725-0.

Wulandari, D.C., Y.S. Rahayu dan E Ratnasari. 2014. Pengaruh Pemberian Hormon Giberelin Terhadap Pembentukan Buah Secara Partenokarpi Pada Tanaman Mentimun Varietas Mercy. Lentera Bio. 3(1): 27 -32.